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Finding the Fourth Proportional to 121,307.10, 167,416.11 and 67,600.86

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Solution

The fourth proportional to 121,307.10, 167,416.11 and 67,600.86 is: 93,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,307.10 : 167,416.11 = 67,600.86 : x
  2. Step 2: Convert to fraction form
    121,307.10/167,416.11 = 67,600.86/x
  3. Step 3: Cross multiply
    121,307.10x = 167,416.11 × 67,600.86
  4. Step 4: Simplify right side
    121,307.10x = 11,317,473,013.85
  5. Step 5: Solve for x
    x = 11,317,473,013.85/121,307.10
  6. Step 6: Final answer
    x = 93,296.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.